var setGradient = (function(){
    var p_dCanvas = document.createElement('canvas');
    var p_useCanvas =  !!( typeof(p_dCanvas.getContext) == 'function');
    var p_dCtx = p_useCanvas?p_dCanvas.getContext('2d'):null;
    var p_isIE = /*@cc_on!@*/false;
    try{   
        p_dCtx.canvas.toDataURL()
    }catch(err){
        p_useCanvas = false;
    };
    if(p_useCanvas){
        return function (dEl , sColor1 , sColor2 , bRepeatY ){
            if(typeof(dEl) == 'string') dEl =  document.getElementById(dEl);
            if(!dEl) return false;
            var nW = dEl.offsetWidth;
            var nH = dEl.offsetHeight;
            p_dCanvas.width = nW;
            p_dCanvas.height = nH;
            var dGradient;
            var sRepeat;
            if(bRepeatY){
                dGradient = p_dCtx.createLinearGradient(0,0,nW,0);
                sRepeat = 'repeat-y';
            }else{
                dGradient = p_dCtx.createLinearGradient(0,0,0,nH);
                sRepeat = 'repeat-x';
            }
            dGradient.addColorStop(0,sColor1);
            dGradient.addColorStop(1,sColor2);
            p_dCtx.fillStyle = dGradient;
            p_dCtx.fillRect(0,0,nW,nH);
            var sDataUrl = p_dCtx.canvas.toDataURL('image/png');
            with(dEl.style){
                backgroundRepeat = sRepeat;
                backgroundImage = 'url(' + sDataUrl + ')';
                backgroundColor = sColor2;
                };
        }
    }else if(p_isIE){
        p_dCanvas = p_useCanvas = p_dCtx =  null;
        return function (dEl , sColor1 , sColor2 , bRepeatY){
            if(typeof(dEl) == 'string') dEl =  document.getElementById(dEl);
            if(!dEl) return false;
            dEl.style.zoom = 1;
            var sF = dEl.currentStyle.filter;
            dEl.style.filter += ' ' + ['progid:DXImageTransform.Microsoft.gradient(GradientType=',  +(!!bRepeatY ),',enabled=true,startColorstr=',sColor1,', endColorstr=',sColor2,')'].join('');
        };
    }else{
        p_dCanvas = p_useCanvas = p_dCtx =  null;
        return function(dEl , sColor1 , sColor2  ){
            if(typeof(dEl) == 'string') dEl =  document.getElementById(dEl);
            if(!dEl) return false;
            with(dEl.style){
                backgroundColor = sColor2;
                };
        }
    }
})();
 